The decadal growth rate of population in the year 1931 was

The correct answer is -11.0%

Key Points

• Decadal Growth Rate
  • The decadal growth rate of population refers to the percentage increase in the population over a period of ten years.
  • It is a crucial demographic indicator to understand population trends and is calculated using the formula:
    • Decadal Growth Rate = [(Population at end of decade - Population at start of decade) / Population at start of decade] * 100
• Historical Context
  • In the year 1931, the decadal growth rate of the population in India was recorded at 11.0%.

Additional Information

• Population Growth Factors
  • Several factors affect population growth rates, including:
    • Birth Rate: The number of live births per 1,000 people in a year.
    • Death Rate: The number of deaths per 1,000 people in a year.
    • Immigration and Emigration: The movement of people into (immigration) or out of (emigration) a country.
• Demographic Transition
  • The demographic transition model explains the transformation of countries from having high birth and death rates to low birth and death rates.
    • It consists of four stages: pre-transition, transition, post-transition, and modern era.
    • Understanding these stages helps in analyzing the population growth patterns over different periods.
• Historical Population Data
  • Historical population data provides insights into the socio-economic conditions of the time.
    • For example, the lower growth rates in the early 20th century can be attributed to higher mortality rates due to epidemics, limited healthcare, and lower life expectancy.